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Faculty for Biology, Chemistry and Earth Sciences

Department of Biology Education - Prof. Dr. Franz X. Bogner

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CO2-reception in insects (1985-1992)

Chemical Ecology

From 12/1985 to 12/1992

Quite contrary to expectations, Lepidoptera have got on the top of their labial palpi specialized, high sensitive CO2-receptores which can detect thresholds below the CO2–content of air. The gaudiest feature of these receptores is the absence of any adaption, even at strong, long lasting stimulation with a high concentration of gas. However, this extremly unusual characteristic seems to be intelligible in the context of the continuous collection of the CO2 content in the surroundings. Despite a clearly characterisation of specialized receptores, no explanation might be given with regard to the biological function in the life of Lepidoptera so far. Therefore, a following inquiry was performed to such receptors of Tsetse flies, because analysing their behaviour indicated that these blood-sucking insects can localise potential hosts through such a CO2 gradient.

List of publications of this Project

Bogner, FX: Response Properties of CO2-Sensitive Receptors in Tsetse Flies (Diptera: Glossina palpalis)., Physiological Entomology, 17, 19-24 (1992) -- Details
Bogner, FX: Sensory Physiological Investigation of Carbon Dioxide Receptors in Adult Lepidoptera., Journal of Insect Physiology, 36, 951-957 (1990) -- Details
Bogner, FX; Boppré, M; Ernst, KE; Boeckh, J: CO2-sensitive receptors on labial palps of Rhodogastria moths (Lepidoptera: Arctiidae): physiology, fine structure and central projection., Journal of Comparative Physiology (A), 158, 741-749 (1986) -- Details
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